Ryujinx/Ryujinx.HLE/HOS/Services/FspSrv/IFileSystemProxy.cs

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using LibHac;
using LibHac.Fs;
using LibHac.Fs.NcaUtils;
using Ryujinx.Common;
using Ryujinx.Common.Logging;
using Ryujinx.HLE.FileSystem;
using Ryujinx.HLE.HOS.Ipc;
using Ryujinx.HLE.Utilities;
using System.Collections.Generic;
using System.IO;
using static Ryujinx.HLE.FileSystem.VirtualFileSystem;
using static Ryujinx.HLE.HOS.ErrorCode;
using static Ryujinx.HLE.Utilities.StringUtils;
namespace Ryujinx.HLE.HOS.Services.FspSrv
{
[Service("fsp-srv")]
class IFileSystemProxy : IpcService
{
private Dictionary<int, ServiceProcessRequest> _commands;
public override IReadOnlyDictionary<int, ServiceProcessRequest> Commands => _commands;
public IFileSystemProxy(ServiceCtx context)
{
_commands = new Dictionary<int, ServiceProcessRequest>
{
{ 1, Initialize },
{ 8, OpenFileSystemWithId },
{ 11, OpenBisFileSystem },
{ 18, OpenSdCardFileSystem },
{ 51, OpenSaveDataFileSystem },
{ 52, OpenSaveDataFileSystemBySystemSaveDataId },
{ 200, OpenDataStorageByCurrentProcess },
{ 202, OpenDataStorageByDataId },
{ 203, OpenPatchDataStorageByCurrentProcess },
{ 1005, GetGlobalAccessLogMode },
{ 1006, OutputAccessLogToSdCard }
};
}
// Initialize(u64, pid)
public long Initialize(ServiceCtx context)
{
return 0;
}
// OpenFileSystemWithId(nn::fssrv::sf::FileSystemType filesystem_type, nn::ApplicationId tid, buffer<bytes<0x301>, 0x19, 0x301> path)
// -> object<nn::fssrv::sf::IFileSystem> contentFs
public long OpenFileSystemWithId(ServiceCtx context)
{
FileSystemType fileSystemType = (FileSystemType)context.RequestData.ReadInt32();
long titleId = context.RequestData.ReadInt64();
string switchPath = ReadUtf8String(context);
string fullPath = context.Device.FileSystem.SwitchPathToSystemPath(switchPath);
if (!File.Exists(fullPath))
{
if (fullPath.Contains("."))
{
return OpenFileSystemFromInternalFile(context, fullPath);
}
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
FileStream fileStream = new FileStream(fullPath, FileMode.Open, FileAccess.Read);
string extension = Path.GetExtension(fullPath);
if (extension == ".nca")
{
return OpenNcaFs(context, fullPath, fileStream.AsStorage());
}
else if (extension == ".nsp")
{
return OpenNsp(context, fullPath);
}
return MakeError(ErrorModule.Fs, FsErr.InvalidInput);
}
// OpenBisFileSystem(nn::fssrv::sf::Partition partitionID, buffer<bytes<0x301>, 0x19, 0x301>) -> object<nn::fssrv::sf::IFileSystem> Bis
public long OpenBisFileSystem(ServiceCtx context)
{
int bisPartitionId = context.RequestData.ReadInt32();
string partitionString = ReadUtf8String(context);
string bisPartitionPath = string.Empty;
switch (bisPartitionId)
{
case 29:
bisPartitionPath = SafeNandPath;
break;
case 30:
case 31:
bisPartitionPath = SystemNandPath;
break;
case 32:
bisPartitionPath = UserNandPath;
break;
default:
return MakeError(ErrorModule.Fs, FsErr.InvalidInput);
}
string fullPath = context.Device.FileSystem.GetFullPartitionPath(bisPartitionPath);
LocalFileSystem fileSystem = new LocalFileSystem(fullPath);
MakeObject(context, new IFileSystem(fileSystem));
return 0;
}
// OpenSdCardFileSystem() -> object<nn::fssrv::sf::IFileSystem>
public long OpenSdCardFileSystem(ServiceCtx context)
{
string sdCardPath = context.Device.FileSystem.GetSdCardPath();
LocalFileSystem fileSystem = new LocalFileSystem(sdCardPath);
MakeObject(context, new IFileSystem(fileSystem));
return 0;
}
// OpenSaveDataFileSystem(u8 save_data_space_id, nn::fssrv::sf::SaveStruct saveStruct) -> object<nn::fssrv::sf::IFileSystem> saveDataFs
public long OpenSaveDataFileSystem(ServiceCtx context)
{
return LoadSaveDataFileSystem(context);
}
// OpenSaveDataFileSystemBySystemSaveDataId(u8 save_data_space_id, nn::fssrv::sf::SaveStruct saveStruct) -> object<nn::fssrv::sf::IFileSystem> systemSaveDataFs
public long OpenSaveDataFileSystemBySystemSaveDataId(ServiceCtx context)
{
return LoadSaveDataFileSystem(context);
}
// OpenDataStorageByCurrentProcess() -> object<nn::fssrv::sf::IStorage> dataStorage
public long OpenDataStorageByCurrentProcess(ServiceCtx context)
{
MakeObject(context, new IStorage(context.Device.FileSystem.RomFs.AsStorage()));
return 0;
}
// OpenDataStorageByDataId(u8 storageId, nn::ApplicationId tid) -> object<nn::fssrv::sf::IStorage> dataStorage
public long OpenDataStorageByDataId(ServiceCtx context)
{
StorageId storageId = (StorageId)context.RequestData.ReadByte();
byte[] padding = context.RequestData.ReadBytes(7);
long titleId = context.RequestData.ReadInt64();
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ContentType contentType = ContentType.Data;
StorageId installedStorage =
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context.Device.System.ContentManager.GetInstalledStorage(titleId, contentType, storageId);
if (installedStorage == StorageId.None)
{
contentType = ContentType.PublicData;
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installedStorage =
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context.Device.System.ContentManager.GetInstalledStorage(titleId, contentType, storageId);
}
if (installedStorage != StorageId.None)
{
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string contentPath = context.Device.System.ContentManager.GetInstalledContentPath(titleId, storageId, contentType);
string installPath = context.Device.FileSystem.SwitchPathToSystemPath(contentPath);
if (!string.IsNullOrWhiteSpace(installPath))
{
string ncaPath = installPath;
if (File.Exists(ncaPath))
{
try
{
LibHac.Fs.IStorage ncaStorage = new LocalStorage(ncaPath, FileAccess.Read, FileMode.Open);
Nca nca = new Nca(context.Device.System.KeySet, ncaStorage);
LibHac.Fs.IStorage romfsStorage = nca.OpenStorage(NcaSectionType.Data, context.Device.System.FsIntegrityCheckLevel);
MakeObject(context, new IStorage(romfsStorage));
}
catch (HorizonResultException ex)
{
return ex.ResultValue.Value;
}
return 0;
}
else
{
throw new FileNotFoundException($"No Nca found in Path `{ncaPath}`.");
}
}
else
{
throw new DirectoryNotFoundException($"Path for title id {titleId:x16} on Storage {storageId} was not found in Path {installPath}.");
}
}
throw new FileNotFoundException($"System archive with titleid {titleId:x16} was not found on Storage {storageId}. Found in {installedStorage}.");
}
// OpenPatchDataStorageByCurrentProcess() -> object<nn::fssrv::sf::IStorage>
public long OpenPatchDataStorageByCurrentProcess(ServiceCtx context)
{
MakeObject(context, new IStorage(context.Device.FileSystem.RomFs.AsStorage()));
return 0;
}
// GetGlobalAccessLogMode() -> u32 logMode
public long GetGlobalAccessLogMode(ServiceCtx context)
{
int mode = context.Device.System.GlobalAccessLogMode;
context.ResponseData.Write(mode);
return 0;
}
// OutputAccessLogToSdCard(buffer<bytes, 5> log_text)
public long OutputAccessLogToSdCard(ServiceCtx context)
{
string message = ReadUtf8StringSend(context);
// FS ends each line with a newline. Remove it because Ryujinx logging adds its own newline
Logger.PrintAccessLog(LogClass.ServiceFs, message.TrimEnd('\n'));
return 0;
}
public long LoadSaveDataFileSystem(ServiceCtx context)
{
SaveSpaceId saveSpaceId = (SaveSpaceId)context.RequestData.ReadInt64();
long titleId = context.RequestData.ReadInt64();
UInt128 userId = context.RequestData.ReadStruct<UInt128>();
long saveId = context.RequestData.ReadInt64();
SaveDataType saveDataType = (SaveDataType)context.RequestData.ReadByte();
SaveInfo saveInfo = new SaveInfo(titleId, saveId, saveDataType, userId, saveSpaceId);
string savePath = context.Device.FileSystem.GetGameSavePath(saveInfo, context);
try
{
LocalFileSystem fileSystem = new LocalFileSystem(savePath);
DirectorySaveDataFileSystem saveFileSystem = new DirectorySaveDataFileSystem(fileSystem);
MakeObject(context, new IFileSystem(saveFileSystem));
}
catch (HorizonResultException ex)
{
return ex.ResultValue.Value;
}
return 0;
}
private long OpenNsp(ServiceCtx context, string pfsPath)
{
try
{
LocalStorage storage = new LocalStorage(pfsPath, FileAccess.Read, FileMode.Open);
PartitionFileSystem nsp = new PartitionFileSystem(storage);
ImportTitleKeysFromNsp(nsp, context.Device.System.KeySet);
IFileSystem nspFileSystem = new IFileSystem(nsp);
MakeObject(context, nspFileSystem);
}
catch (HorizonResultException ex)
{
return ex.ResultValue.Value;
}
return 0;
}
private long OpenNcaFs(ServiceCtx context, string ncaPath, LibHac.Fs.IStorage ncaStorage)
{
try
{
Nca nca = new Nca(context.Device.System.KeySet, ncaStorage);
if (!nca.SectionExists(NcaSectionType.Data))
{
return MakeError(ErrorModule.Fs, FsErr.PartitionNotFound);
}
LibHac.Fs.IFileSystem fileSystem = nca.OpenFileSystem(NcaSectionType.Data, context.Device.System.FsIntegrityCheckLevel);
MakeObject(context, new IFileSystem(fileSystem));
}
catch (HorizonResultException ex)
{
return ex.ResultValue.Value;
}
return 0;
}
private long OpenFileSystemFromInternalFile(ServiceCtx context, string fullPath)
{
DirectoryInfo archivePath = new DirectoryInfo(fullPath).Parent;
while (string.IsNullOrWhiteSpace(archivePath.Extension))
{
archivePath = archivePath.Parent;
}
if (archivePath.Extension == ".nsp" && File.Exists(archivePath.FullName))
{
FileStream pfsFile = new FileStream(
archivePath.FullName.TrimEnd(Path.DirectorySeparatorChar),
FileMode.Open,
FileAccess.Read);
try
{
PartitionFileSystem nsp = new PartitionFileSystem(pfsFile.AsStorage());
ImportTitleKeysFromNsp(nsp, context.Device.System.KeySet);
string filename = fullPath.Replace(archivePath.FullName, string.Empty).TrimStart('\\');
if (nsp.FileExists(filename))
{
return OpenNcaFs(context, fullPath, nsp.OpenFile(filename, OpenMode.Read).AsStorage());
}
}
catch (HorizonResultException ex)
{
return ex.ResultValue.Value;
}
}
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
private void ImportTitleKeysFromNsp(LibHac.Fs.IFileSystem nsp, Keyset keySet)
{
foreach (DirectoryEntry ticketEntry in nsp.EnumerateEntries("*.tik"))
{
Ticket ticket = new Ticket(nsp.OpenFile(ticketEntry.FullPath, OpenMode.Read).AsStream());
if (!keySet.TitleKeys.ContainsKey(ticket.RightsId))
{
keySet.TitleKeys.Add(ticket.RightsId, ticket.GetTitleKey(keySet));
}
}
}
}
}